A suburban Kansas City man who began vaping in high school and now suffers respiratory problems has sued a leading e-cigarette maker, alleging that it fraudulently concealed the addictive nature of its products.

KCUR reports that Isaac Gant, of Johnson County, Kansas, filed the lawsuit this week in federal court in Kansas City, Kansas. He’s seeking class action status on behalf of all Kansas residents who bought or used products made by Juul. The suit seeks unspecified damages.

The filing comes as health officials investigate hundreds of breathing illnesses nationwide reported in people who used vaping devices. Seven deaths have been reported, including one in Kansas.

San Francisco-based Juul said last week in a statement that it’s “never marketed to youth” and has ongoing campaigns to combat underage use.

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